参数资料
| 型号： | MAX5943BEEE+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 18/20页 |
| 文件大小： | 0K |
| 描述： | IC FIREWIRE CURR LIMITER 16-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 应用： | FireWire? 应用程序 |
| FET 型： | N 沟道 |
| 输出数： | 2 |
| 内部开关： | 无 |
| 延迟时间 - 关闭： | 100ns |
| 电源电压： | 7.5 V ~ 37 V |
| 电流 - 电源： | 1.3mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 管件 |
FireWire Current Limiter and Low-Drop
ORing Switch Controller
FireWire Power Management
The MAX5943 serves to regulate and protect FireWire
power over a system interface. The MAX5943 program-
mable features make it suitable for both power provider
and power receiver applications. Figure 14 shows a
high-end two-port FireWire power management system
using two MAX5943As and a dual-channel MAX5944
FireWire current-limiting IC.
Caution: The additional gate-to-source capacitance
causes the turn-off time of the MOSFETs to increase
due to the additional charge of the capacitor. Use the
minimum capacitor value to prevent currents from flow-
ing in hot-plug situations.
Typical Application Circuit
Transient Protection
If IN or OUT experiences a fast voltage transient, the
drain-to-gate parasitic capacitance of Q1 and/or Q2
FireWire
PORT
SUPPLY
+
30m Ω
SI7958DP
SI7958DP
TO
FireWire
PORT
may be sufficient to briefly enhance one of the transis-
tors, allowing current glitch. If the circuit is subjected to
1k Ω
10k Ω
4k Ω
Q1
Q2
large transients, connect capacitors from the gate to
source across the appropriate MOSFET, preventing the
parasitic capacitance from turning on the device.
V IN = 12V
TIM IN
FAULT
ON
SENSE GATE1
MAX5943A
GATE2
OUT
Typical Operating Circuit
7.15k Ω
ILIM
LATCH
GND
OR_ADJ
ONQ1
-
FireWire
PORT
SUPPLY
R1
R3
+
V IS -
R SENSE
Q1
Q2
TO
FireWire
PORT
Selector Guide
TIM IN
FAULT
ON
SENSE GATE1
MAX5943A
GATE2
OUT
PART
CURRENT
LIMITER/
CIRCUIT
BREAKER
DEFAULT
TIMEOUT
(ms)
PROGRAMMABLE
TIMEOUT RANGE
R2
ILIM
LATCH
GND
OR_ADJ
ONQ1
MAX5943A Current limit
MAX5943B Circuit breaker
2
0.5
1.04ms to 11.05ms
32.5μs to 345μs
MAX5943C Circuit breaker
MAX5943D Circuit breaker
1
2
65μs to 690μs
130μs to 1.38ms
VERY-LOW-DROP
ORing DIODE
MAX5943 EQUIVALENT CIRCUIT
LOAD DISCONNECT
SWITCH
MAX5943E Circuit breaker
4
260μs to 2.76ms
Chip Information
CURRENT-LIMIT/CIRCUIT-BREAKER
AND INRUSH CONTROL
TRANSISTOR COUNT: 2324
PROCESS: BiCMOS
18
______________________________________________________________________________________
相关PDF资料 |
PDF描述 |
|---|---|
| MAX5944ESE+T | IC FW CURR LIMITER DUAL 16-SOIC |
| MAX5951ETJ+ | IC REG CTRLR BUCK PWM VM 32-TQFN |
| MAX5974AETE+ | IC REG CTRLR FLYBACK PWM 16-TQFN |
| MAX5974FETE+ | IC REG CTRLR FLYBACK PWM 16-TQFN |
| MAX5975BETE+ | IC REG CTRLR FLYBK ISO CM 16TQFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5943BEEE+ | 功能描述:热插拔功率分布 FireWire Current Limiter RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5943BEEE+T | 功能描述:热插拔功率分布 FireWire Current Limiter RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5943BEEE-T | 功能描述:热插拔功率分布 RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5943CEEE | 功能描述:热插拔功率分布 RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5943CEEE+ | 功能描述:热插拔功率分布 FireWire Current Limiter RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
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